new SHA1Managed()
using System; using System.Text; using System.Security.Cryptography; class MainClass { public static void Main(string[] args) { HashAlgorithm hashAlg = null; hashAlg = new SHA1Managed(); using (hashAlg) { byte[] pwordData = Encoding.Default.GetBytes(args[1]); byte[] hash = hashAlg.ComputeHash(pwordData); Console.WriteLine(BitConverter.ToString(hash)); } } }